Symptom Chart

SYMPTOM CHART

Condition	Possible Sources	Action
The anti-lock brake system (ABS) module does not respond to the diagnostic tool	Circuit or connection in the controller area network (CAN) ABS module	GO to PINPOINT TEST A .
The powertrain control module (PCM) does not respond to the diagnostic tool	Circuit or connection in the controller area network (CAN) PCM	GO to PINPOINT TEST B .
The instrument cluster does not respond to the diagnostic tool	Circuit or connection in the controller area network (CAN) Instrument cluster	GO to PINPOINT TEST C .
The restraint control module (RCM) does not respond to the diagnostic tool	Circuit or connection in the controller area network (CAN) RCM	GO to PINPOINT TEST D .
The generic electronic module (GEM) does not respond to the diagnostic tool	Circuit or connection in the international standards organization (ISO) 9141 communications network GEM	GO to PINPOINT TEST E .
No international standards organization (ISO) network communication	Circuit or connection in the ISO 9141 communications network Generic electronic module (GEM)	GO to PINPOINT TEST E .
No controller area network (CAN) network communication	Circuit or connection in the CAN Anti-lock brake system (ABS) module Powertrain control module (PCM) Instrument cluster Restraint control module (RCM) Occupant Classification Sensor	GO to PINPOINT TEST F .
No module/network communication - no power to the diagnostic tool	Fuse Circuitry Data link connector (DLC) Diagnostic tool	GO to PINPOINT TEST G .